4EC4-ELECTROMAGNETIC FIELD THEORY |
Units: I-INTRODUCTION : |
Vector Relation in rectangular, cylindrical, spherical and general
curvilinear coordinate system. Concept and physical interpretation of gradient, Divergence and curl,
Green’s & Stoke’s theorems.
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Units: II-ELECTROSTATICS : |
Electric field intensity & flux density. Electric field due to various
charge configurations. The potential functions and displacement vector. Gauss’s law. Poisson’s and
Laplace’s equation and their solution. Uniqueness theorem. Continuity equation. Capacitance and
electrostatics energy. Field determination by method of images. Boundary conditions. Field mapping
and concept of field cells. |
Units: III-MAGNETOSTATICS : |
Magnetic field intensity, flux density & magnetization, Faraday’s Law,
Bio-Savart’s law, Ampere’s law, Magnetic scalar and vector potential, self & mutual inductance,
Energy stored in magnetic field, Boundary conditions, Analogy between electric and magnetic field,
Field maping and concept of field cells.
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Units: IV-TIME VARYING FIELDS : |
Displacement currents and equation of continuity. Maxwell’s
equations, Uniform plane wave in free space, dielectrics and conductors, skin effect sinusoidal time
variations, reflection & refraction of Uniform Plane Wave, standing wave ratio. Pointing vector and
power considerations.
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Units: V-RADIATION, EMI AND EMC : |
Retarded Potentials and concepts of radiation, Radiation from
a small current element. Radiation resistance: Introduction to Electromagnetic Interference and
Electromagnetic compatibility, EMI coupling modes, Methods of eliminating interference, shielding,
grounding, conducted EMI, EMI testing: emission testing, susceptibility testing.
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